28883424 has 24 divisors (see below), whose sum is σ = 75819240. Its totient is φ = 9627776.

The previous prime is 28883411. The next prime is 28883429. The reversal of 28883424 is 42438882.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150339 + ... + 150530.

It is an arithmetic number, because the mean of its divisors is an integer number (3159135).

Almost surely, 2^28883424 is an apocalyptic number.

28883424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28883424 is an abundant number, since it is smaller than the sum of its proper divisors (46935816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28883424 is a wasteful number, since it uses less digits than its factorization.

28883424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300882 (or 300874 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 28883424 is about 5374.3300977889. The cubic root of 28883424 is about 306.8194533769.

The spelling of 28883424 in words is "twenty-eight million, eight hundred eighty-three thousand, four hundred twenty-four".